juplo.de Git - demos/kafka/wordcount/blob - src/test/java/de/juplo/kafka/wordcount/query/QueryApplicationIT.java

   1 package de.juplo.kafka.wordcount.query;
   2
   3 import com.fasterxml.jackson.databind.ObjectMapper;
   4 import lombok.extern.slf4j.Slf4j;
   5 import org.apache.kafka.streams.state.KeyValueBytesStoreSupplier;
   6 import org.apache.kafka.streams.state.Stores;
   7 import org.junit.jupiter.api.BeforeAll;
   8 import org.junit.jupiter.api.DisplayName;
   9 import org.junit.jupiter.api.Test;
  10 import org.springframework.beans.factory.annotation.Autowired;
  11 import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
  12 import org.springframework.boot.test.context.SpringBootTest;
  13 import org.springframework.boot.test.context.TestConfiguration;
  14 import org.springframework.context.annotation.Bean;
  15 import org.springframework.http.MediaType;
  16 import org.springframework.kafka.core.KafkaTemplate;
  17 import org.springframework.kafka.support.SendResult;
  18 import org.springframework.kafka.test.context.EmbeddedKafka;
  19 import org.springframework.test.web.servlet.MockMvc;
  20 import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
  21
  22 import java.nio.charset.StandardCharsets;
  23 import java.time.Duration;
  24 import java.util.concurrent.CompletableFuture;
  25
  26 import static de.juplo.kafka.wordcount.query.QueryStreamProcessor.RANKING_STORE_NAME;
  27 import static de.juplo.kafka.wordcount.query.QueryStreamProcessor.USER_STORE_NAME;
  28 import static org.awaitility.Awaitility.await;
  29 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
  30
  31
  32 @SpringBootTest(
  33                 properties = {
  34                                 "spring.main.allow-bean-definition-overriding=true",
  35                                 "spring.kafka.producer.key-serializer=org.apache.kafka.common.serialization.StringSerializer",
  36                                 "spring.kafka.producer.value-serializer=org.springframework.kafka.support.serializer.JsonSerializer",
  37                                 "spring.kafka.producer.properties.spring.json.type.mapping=userdata:de.juplo.kafka.wordcount.users.TestUserData,ranking:de.juplo.kafka.wordcount.top10.TestRanking",
  38                                 "logging.level.root=WARN",
  39                                 "logging.level.de.juplo=DEBUG",
  40                                 "logging.level.org.apache.kafka.clients=INFO",
  41                                 "logging.level.org.apache.kafka.streams=INFO",
  42                                 "juplo.wordcount.query.bootstrap-server=${spring.embedded.kafka.brokers}",
  43                                 "juplo.wordcount.query.commit-interval=100",
  44                                 "juplo.wordcount.query.cache-max-bytes=0",
  45                                 "juplo.wordcount.query.users-input-topic=" + QueryApplicationIT.TOPIC_USERS,
  46                                 "juplo.wordcount.query.ranking-input-topic=" + QueryApplicationIT.TOPIC_TOP10 })
  47 @AutoConfigureMockMvc
  48 @EmbeddedKafka(topics = { QueryApplicationIT.TOPIC_TOP10, QueryApplicationIT.TOPIC_USERS})
  49 @Slf4j
  50 public class QueryApplicationIT
  51 {
  52         public static final String TOPIC_TOP10 = "top10";
  53         public static final String TOPIC_USERS = "users";
  54
  55
  56         @Autowired
  57         MockMvc mockMvc;
  58         @Autowired
  59         ObjectMapper objectMapper;
  60         @Autowired
  61         QueryStreamProcessor streamProcessor;
  62
  63
  64         @BeforeAll
  65         public static void testSendMessage(
  66                         @Autowired KafkaTemplate<String, Object> kafkaTemplate)
  67         {
  68                 TestData
  69                                 .getUsersMessages()
  70                                 .forEach(kv -> flush(kafkaTemplate.send(TOPIC_USERS, kv.key, kv.value)));
  71                 TestData
  72                                 .getTop10Messages()
  73                                 .forEach(kv -> flush(kafkaTemplate.send(TOPIC_TOP10, kv.key, kv.value)));
  74         }
  75
  76         private static void flush(CompletableFuture<SendResult<String, Object>> future)
  77         {
  78                 try
  79                 {
  80                         SendResult<String, Object> result = future.get();
  81                         log.info(
  82                                         "Sent: {}={}, partition={}, offset={}",
  83                                         result.getProducerRecord().key(),
  84                                         result.getProducerRecord().value(),
  85                                         result.getRecordMetadata().partition(),
  86                                         result.getRecordMetadata().offset());
  87                 }
  88                 catch (Exception e)
  89                 {
  90                         throw new RuntimeException(e);
  91                 }
  92         }
  93
  94         @DisplayName("Await, that the expected state is visible in the state-store")
  95         @Test
  96         public void testAwaitExpectedStateInStore()
  97         {
  98                 await("The expected state is visible in the state-store")
  99                                 .atMost(Duration.ofSeconds(5))
 100                                 .untilAsserted(() -> TestData.assertExpectedState(user -> streamProcessor.getStore().get(user)));
 101         }
 102
 103         @DisplayName("Await, that the expected state is queryable")
 104         @Test
 105         public void testAwaitExpectedStateIsQueryable()
 106         {
 107                 await("The expected state is queryable")
 108                                 .atMost(Duration.ofSeconds(5))
 109                                 .untilAsserted(() -> TestData.assertExpectedState(user -> requestUserRankingFor(user)));
 110         }
 111
 112         private UserRanking requestUserRankingFor(String user)
 113         {
 114                 try
 115                 {
 116                         return objectMapper.readValue(
 117                                         mockMvc
 118                                                         .perform(MockMvcRequestBuilders.get("/{user}", user)
 119                                                                         .contentType(MediaType.APPLICATION_JSON))
 120                                                         .andExpect(status().isOk())
 121                                                         .andReturn()
 122                                                         .getResponse()
 123                                                         .getContentAsString(StandardCharsets.UTF_8),
 124                                         UserRanking.class);
 125                 }
 126                 catch (Exception e)
 127                 {
 128                         throw new RuntimeException(e);
 129                 }
 130         }
 131
 132         @TestConfiguration
 133         static class Configuration
 134         {
 135                 @Bean
 136                 KeyValueBytesStoreSupplier userStoreSupplier()
 137                 {
 138                         return Stores.inMemoryKeyValueStore(USER_STORE_NAME);
 139                 }
 140
 141                 @Bean
 142                 KeyValueBytesStoreSupplier rankingStoreSupplier()
 143                 {
 144                         return Stores.inMemoryKeyValueStore(RANKING_STORE_NAME);
 145                 }
 146         }
 147 }